.layui-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 5px;
}

.icon-url img {
    height: 30px;
    margin-left: 30px;
}

.layui-table .bg {
    background: #2d3237;
    text-align: center;
}

table tbody td:nth-child(2) {
    text-align: center;
}

table tbody td:nth-child(2) img {
    text-align: center;
    width: 200px;
    padding: 5px 20px;
    background-color: #000;
}

#preIcon {
    background-color: #000;
}